Nut lock



P-az-ened Jan. 2, 1923.

neuren Me,sg@ EMENT @11HCE BENJAMIN e. PATTERSON, or OKLAHOIMA,..QKLAHOMA.V

NU'T LOCK.

Application filed December 25, ieze. Serial No. 433,626.

T0 ali wlwrmit may concern'.

Be it knewn that ,BENJAMIN G. PAr- TERSON, a citizen ef the United Stet'es, end a resident of Oklahoma city, in the ceunty of Oklahoma and State ef Oklahoma, have invented ceruin new and useful Impreve- 1nents in Nut Lecks, of which the follewing isa speeification.

My present inventien re1at es generally te nut lecks, and more particularly te a nut look of that type in Which the nufi' itself is previded Wibh internal ineens te lockingly engage the threads of a'belt in case of any tendency toward retating mevern'ent 01' the nut eff of the bolu'.

More especialiy my inventien reiates to that type of device shewnin ny Patent Ne. 1,042,962 dated Octeber 29, 1912 and aims to provide a simple and efective meansfor holding a lecking deg in the nut slot against accidental displacement while the nut is being serewed ente the bolt.

The inventien as prepesed is suseeptible of two ferme depending upon whether the nut is permanently placed in che first in- Stance or is to be subject to frequentremoval fer purposes of adjustnuent, end beth of these ferms Will be new described in connection with the aceornpanying drawing, which fer1ns a part ef this speeificatien, end in which,

Figure 1 is a transverSe section threugh a nut provided with my improvernents end adapted fer frequent ren1eval end adjustment,

Figure 2 is a longitudnal sectien therethreugh taken on line 2-2 0]? Figure 1,

Figure 3 is a detail perspective view ef che deg holding pin,

Figure 4 is a detail perspective view of the lecking deg removed,

Figure 5 is a transverse secten threugh a medified erm in the nature ef a, permanently plaeed nut, end

Figure 6 is a detail perspeetive view of the dog holding pin of Figure .Referring now to these figures I have shown in Figures 1 and 2 a nut 10 having che usual threaded bere 11 and previded in the wall of its said bere Wibh lengt-hwise greove 12, the latter receiving in mevable relatien a locking deg 13 having an innerrnest toethed Iengthwise edge 14, the teeth being' fermed te coincide with the threeds or" the bere 11 and the lecking deg being se fermed end dispesed within the slot 215 te permt of ready meve1nent or the nut on tea belt and to rock within the slot 12 end inte leckiixg engixgement with the beh;

thread upen any tendericy of the nut te turn in the eppesitefdireetien.

' This leeking deg 13 hzis ene inclined 'aee nermally spaced freni ene side wall of the slot 12 and is also previded with a tran verse greeve 15 in its toethed edge, intermdiate its ends, threug"h which the inner end of a deg holding pin 16 is extended Se es te held the lecking deg Within the nut and agrinst accidental displacernent, particularly whilethe nut is being serewed on to che belt, io beng obvieus that this pin ferms ne impedirnent te efiective 1nevement ef tbe iecking deg inte engegemehtvx'zith the belt threads.

The pin 16 'is shown in Figures 1 and 3 as having en inner reduced pertien, its euter pertien or body being fixed within a, bere and the 10cking deg 13 se as te tend to ferce the latter teward end inte engagement with the belt threads at all times.

In this way the lecking deg may be made siightly smaller than the slot in order that the nuts may be freely turned on te the bolt, and just as freely turned efl' ef'the be1t by the use of' an unlecking pin 19 which may be ferced lengthwise into the slot 12 betvveen ene side wal1 which may have a recess for the pin, and the inclined side face ef the lecking deg as seen in Figure 1.

This structure is ef particular use in conneetien with nuts where there is frequent eccasien te adjust the parts held thereby, requiring the nut to be either leesened or removed, but the inventiexi may be carried out by the use of 3. pin 16 as seen in Figures 5 and 6, ef ene diameter througheut, whch s extended threugh acenfermable epening of the nut 10 at a tangent te its threaded bere 11, with the inner end prejecting into the slot 12" end threugh the transverse recess 15 of the lecking deg 13. In this case the lecking deg is made slightly larger than in F igures 1 te 4 inclusive SO thai; it Will engage the be1t threads at 2111 times and the frictien ef this engagement reo W1l serve te rock the lecking dog into looking-engagement wth the beh; threads upen any -endenoy of the nut te turn ef of the belt. Ths censtructon dispenses WJh e spring end s ntended er use with nuts that are to be permanently applecl.

According to ether structure rny inventren serves te efiectwely held che lock1ng doge in place after they are once inserteb meunted te rock laterally therein, said dog havng a toothed inneredge end a -Crzmsverse recess 1nterrned1ate 1ts ends, end means meunted 1n connecmen Wrth the nnt and extendng movably ine tbe recess er normally holding the dog aganst disjplacement, sad

m.eans consstng of a pn fixed threugh the nut at a tangen't to its tbreadedbere es described.

2. A nut havng a threaded bere end a lengthvvse slot in the wall ef said bere, a toethed ]ockng degjmounteclto rock laterally wthin che sad slot end having a recess in its toothed edge ntermediate ts ends, sad nut having an opening extending therein from one of its polygonzil faces at a tangent to its threaded bere and communcating al: ts inner end w th the slot, 2 pin fi'xed wthn sai cl opening end havng its inner end extendirig into the recess ef the locking dog end a spring supported by the deg. y

8. A nut having a threadecl bere end a lengthwse slot in the wall ef said bere, a teothed loeking deg meunted te rock latera]ly witbn the sad slot end bavng a recess in its toothed edge intermedate its 'ends, sad

nut having an epenng extendng therein frem one of its pelygonal fces at a tangent to its threaded. bere end cemrnuncatng ai:

said pin end engagng its nner end with the slot, a pn fixed Wthn thesaid epenng end hzwng a reducedinner porton extending inte the-recess of the lookng dog end fermng a shulder, end a spring around the reduced nner perten of the pin, said spring being seated against sad sheulder ai: ene end and bearng aganst the looking dog at its epposite end.

' 4. A nut havng a threaded bere end a, lengthwise slot-in the wall of sad bere, a

teothed lecking deg mountel te rock trzms- 1 versely in the bere sad deg having ene Side face spaced from the adjacent sde faceef che ,slotend having a recess in its toothed edge, a pin carred by the nut ane1 extending into the recess efthe dog to prevent lengthwse dsplacement ef che latter, a spring in cennection with the pn end engagng the dog terock the same in ene directon, and an unlocking pin shiftable ,against the looking deg between the sad sde face and the said wall 01: the slot, te rock the dog against the tension ef sad.sprng.

BENJAMIN G. PATTERSON. 

